Liya Fan created ARROW-6707:
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Summary: [Java] Improve the performance of JDBC adapters by using
nullable information
Key: ARROW-6707
URL: https://issues.apache.org/jira/browse/ARROW-6707
Project: Apache Arrow
Issue Type: Improvement
Components: Java
Reporter: Liya Fan
Assignee: Liya Fan
JDBC meta data has a field that indicates if a column can contain null. We can
make use of this information when transforming jdbc data to arrow vectors.
In particular, if the column cannot have null, there is no need to call the
JDBC API for each value to check if the last value is null.
This will improve the performance of transforming JDBC data to arrow vectors.
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